Claudia Donovan is the current Caretaker of Warehouse 13, the mother of Kelsey Jinks and the aunt and surrogate mother of Tamsin and Jenny.
Claudia spent the first years of her life in the small town Kenswick, alongside her parents and two older siblings. In 1999, her mother and father died in an artifact-related accident. Her sister Claire was put in a coma, leaving Claudia to believe she'd lost her too. Since their brother recently turned 18, he gained custody of Claudia, at least until he vanished in a lab accident three years later. As of 2002, Claudia was stuck in the foster care system.
During her teenage years, Claudia lived on the streets for a while, and also spent some months in a mental institution. She was seeing her supposedly dead brother, who was reaching out to her from a pocket dimension.
In 2009, Claudia finally saved Joshua with the help of Artie Nielsen. Afterwards, she started working for him at Warehouse 13.